There are reports of a multi vehicle pile-up close to Armagh.
It happened on the main Armagh To Keady Road.
Reports said the incident occurred shortly before 5pm.
One eyewitness said four vehicles were involved in the collision – three cars and a van.
Police have said that the road is closed.
A spokesperson said: “Police are trying to get traffic through using one lane, so please be aware, there will be a delay in the area.”
Use an alternative route if possible.
There are no further details at this stage.